发明授权
US3207981A Electrical device having uniquely posi-tioned electrodes for determining metal loss from tubular members
失效
具有用于确定管状构件的金属损失的独特定位电极的电气装置
- 专利标题: Electrical device having uniquely posi-tioned electrodes for determining metal loss from tubular members
- 专利标题(中): 具有用于确定管状构件的金属损失的独特定位电极的电气装置
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申请号: US7069060申请日: 1960-11-21
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公开(公告)号: US3207981A公开(公告)日: 1965-09-21
- 发明人: MARSH GLENN A , EDWARD SCHASCHL
- 申请人: PURE OIL CO
- 专利权人: Pure Oil Co
- 当前专利权人: Pure Oil Co
- 优先权: US7069060 1960-11-21
- 主分类号: G01N27/20
- IPC分类号: G01N27/20
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